PITTSBURGH (AP) — Sidney Crosby split a pair of defenders, worked the puck to his backhand and let it fly. New York Islanders goaltender Anders Nilsson never had a chance.Welcome back, Sid the Kid.The Pittsburgh Penguins superstar capped his 10-month comeback from concussion-like symptoms in thrilling fashion, scoring a pair of goals to go with two assists in a 5-0 victory on Monday.It was a st